Method for painless renal denervation using a peri-vascular tissue ablation catheter with support structures
US10226278B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2015 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Jan 23, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0087
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intravascular catheter for peri-vascular or peri-urethral tissue ablation includes multiple needles advanced through supported guide tubes which expand around a central axis to engage the interior surface of the wall of the renal artery or other vessel of a human body allowing the injection an ablative fluid for ablating tissue, or nerve fibers in the outer layer or deep to the outer layer of the vessel, or in prostatic tissue. A method can involve injection of the ablative fluid over an extended time period of at least 10 seconds or with two injections at two different penetration depths to reduce or eliminate patient pain during ablation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.